CN103869951A - Shadow character input system and method - Google Patents
Shadow character input system and method Download PDFInfo
- Publication number
- CN103869951A CN103869951A CN201210547280.9A CN201210547280A CN103869951A CN 103869951 A CN103869951 A CN 103869951A CN 201210547280 A CN201210547280 A CN 201210547280A CN 103869951 A CN103869951 A CN 103869951A
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- shadow
- character
- image
- capturing device
- image capturing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03542—Light pens for emitting or receiving light
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Character Input (AREA)
- Studio Devices (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses a shadow character input system and method. The shadow character input system comprises a regulating module, a control module, a processing module and a generating module, wherein the regulating module is used for presetting shooting parameters of an image shooting device for shooting shadow characters and regulating the image shooting device according to the shooting parameters, the control module is used for starting the image shooting device to shoot a shadow image of a light emitting device according to a preset shooting interval, the processing module is used for processing mirror images of the shadow image, and the generating module is used for recognizing a motion curve of the shadow from the mirror image processed shadow image and generating characters corresponding to the shot shadow according to the motion curve. The shadow character input system and method can realize the character input through shooting the shadow.
Description
Technical field
The present invention relates to information input technology, relate in particular to a kind of shadow character input system and method.
Background technology
At present, electronic installation can provide various input for user inputs character, for example, and keyboard input, dummy keyboard input, handwriting input and phonetic entry.The variation of input mode can meet user's different demands.But, described in keyboard input requirements in above-mentioned input mode, electronic installation must dispose physical keyboard, dummy keyboard input needs described electronic installation that soft keyboard is installed, phonetic entry need to be equipped with microphone and corresponding identification software, and that handwriting input also need to be carried out in the input panel providing is hand-written.
Above-mentioned input mode is to be all the common input mode that user was familiar with, and lacks new meaning, the more difficult individual demand that meets user.In addition,, if having an electronic installation in the time there is no the above-mentioned software and hardware of outfit, cannot realize the input of character.
Summary of the invention
In view of above content, be necessary to provide a kind of shadow character input system and method, can take the movement locus of the hand-held light-emitting device of user, carry out input character by the movement locus of identifying this shooting.
A kind of shadow characters input method, apply in electronic installation, described electronic installation comprises image capturing device, and the method comprises the steps: that default described image capturing device is in order to take the acquisition parameters of shadow character, and regulates described image capturing device according to described acquisition parameters; In the time starting to input shadow character, start described image capturing device according to the shadow image of default shooting interval time shooting light-emitting device; Described shadow image is carried out to mirror image processing; In shadow image from mirror image processing, identify the movement locus of shadow; And according to character corresponding to the captured shadow of this trace generator.
A kind of shadow character input system, apply in electronic installation, described electronic installation comprises image capturing device, and this system comprises: adjustment module, for presetting described image capturing device in order to take the acquisition parameters of shadow character, and regulate described image capturing device according to described acquisition parameters; Control module, in the time starting to input shadow character, starts described image capturing device according to the shadow image of default shooting interval time shooting light-emitting device; Processing module, for carrying out mirror image processing to described shadow image; And generation module, identify the movement locus of shadow for the shadow image from mirror image processing, and according to character corresponding to the captured shadow of this trace generator.
Compared to prior art, described shadow character input system and method, can take the movement locus of the hand-held light-emitting device of user, carry out input character by the movement locus of identifying this shooting, thereby realize the input of shadow character, without the keyboard by any kind, also can meet users ' individualized requirement becomes a kind of character input mode of novelty.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the preferred embodiments of shadow character input system of the present invention.
Fig. 2 is the mirror image processing schematic diagram of the preferred embodiments of shadow characters input method of the present invention.
Fig. 3 is the process flow diagram of the preferred embodiments of shadow characters input method of the present invention.
Main element symbol description
| Electronic installation | 1 |
| Shadow |
10 |
| |
100 |
| |
102 |
| |
104 |
| |
106 |
| Processor | 11 |
| |
12 |
| |
13 |
| |
14 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be the functional block diagram of the preferred embodiments of shadow character input system of the present invention.Described shadow character input system 10 is applied in electronic installation 1, and described electronic installation 1 can be the devices such as notebook computer, panel computer, communication device (such as mobile phone), personal digital assistant.
Described electronic installation 1 also comprises the elements such as processor 11, memory storage 12, display screen 13 and image capturing device 14.In addition, in actual applications, described electronic installation 1 also can comprise that other are not shown in the element in Fig. 1, for example, and earphone, loudspeaker etc.
Described processor 11 such as, for carrying out all kinds of softwares of described shadow character input system 10 and the 1 interior installation of described electronic installation, operating system, application program etc.Described memory storage 12, can be the internal memory of described electronic installation 1, can also be the movably memory device of this electronic installation 1, as SM card (Smart Media Card, smart media card), SD card (Secure Digital Card, safe digital card), portable hard drive etc.Described memory storage 12 is for storing Various types of data, for example, video, file, image, utilizes the information such as the data that described shadow character input system 10 arranges, obtains.
In this preferred embodiments, described memory storage 12 also can comprise database, identifies for described shadow character input system 10 in order to store all kinds of characters.Described character comprises word, letter, numeral and symbol etc.
Described display screen 13 is for display of visually data, for example, and the character of video, image, input etc.
Described image capturing device 14 can be the device for photographic images such as camera, digital camera.In this preferred embodiments, described image capturing device 14 is in order to take the movement locus of light-emitting device.Described light-emitting device can be any devices that can emit beam such as infrared laser pen, torch, mobile phone, fireworks rod, glo-stick.
In this preferred embodiments, the hand-holdable described light-emitting device of user, in the face of described image capturing device 14 is write character (for ease of describing and be different from the character of other shape inputs, hereinafter referred is " shadow character "), described shadow character input system 10 utilizes described image capturing device 14 to take the movement locus of the hand-held described electronic installation 1 of user, then identifies the movement locus of the shadow in captured shadow image to generate corresponding character.
In addition, described shadow character input system 10 also can further transmit this character in other electronic installations that are connected as for this electronic installation 1, utilize described electronic installation 1 input character in other electronic installations to realize, and the character of input is shown on the display screen of other electronic installations.Between described electronic installation 1 and other electronic installations, can carry out wireless connections, also can connect by data line.
Described shadow character input system 10 comprises multiple functional modules, respectively: adjustment module 100, control module 102, processing module 104 and generation module 106.
Described adjustment module 100, for presetting described image capturing device 14 in order to take the acquisition parameters of shadow character, and regulates described image capturing device 14 according to described acquisition parameters.In the present embodiment, described adjustment module 100 can, after described shadow character input system 10 is activated, be adjusted described image capturing device 14 according to default acquisition parameters, then starts described image capturing device 14 via described control module 102.
Described acquisition parameters comprises, but be not limited to: shutter parameter, aperture parameters and light sensitivity, described adjustment module 100 is slow shutter by described shutter setting parameter, described aperture parameters (is for example set as to the first referential data, F16, F22 or F32), and described light sensitivity is set as to the second referential data (for example) 100 or 200.In the present embodiment, it is the movement locus in order to catch shadow that shutter is set as slow shutter by described adjustment module 100, aperture is received and is carefully avoided background excessively to expose, and ISO is turned down to reduce noise.
Described control module 102, in the time starting to input shadow character, for example starts described image capturing device 14, according to the shadow image of default shooting interval time (, 5 seconds) shooting light-emitting device.In the described shooting interval time, user just hand-holdable described light-emitting device writes one or more characters aloft.
Described processing module 104, for carrying out mirror image processing to described shadow image.Because user is the character that hand-held described light-emitting device is write in the face of the camera lens of described image capturing device 14, therefore, the shadow character that described image capturing device 14 photographs is reverse, and therefore, described processing module 104 need to be carried out mirror image processing to the shadow image of this shooting.For example, with reference to the mirror image processing schematic diagram shown in figure 2, the shadow character that described image capturing device 14 photographs is reverse capital D, after mirror image processing, can obtain the shadow image of character D.
In addition, described processing module 104, also, for described shadow image is carried out to image processing, includes, but are not limited to: heighten contrast, make background color blackening, remove noise.The follow-up identification to shadow character of being more convenient for of shadow image after treatment.
Described generation module 106, identifies the movement locus of shadow for the shadow image from mirror image processing, and according to character corresponding to the captured shadow of this trace generator.Described generation module 106 also can be shown in described character on the display screen 13 of described electronic installation 1.
Described generation module 106, also in the time cannot generating correct character according to this movement locus, provide the character similar to the shape of this movement locus to select for user, or prompting user re-enters.
In addition, in other embodiments, described generation module 106 is also for described character is sent to other electronic installations, and is shown on the display screen of other electronic installations.
As shown in Figure 3, be the process flow diagram of the preferred embodiments of shadow characters input method of the present invention.First, step S2, the described default described image capturing device 14 of adjustment module 100 is in order to take the acquisition parameters of shadow character.Described acquisition parameters includes, but are not limited to: shutter parameter, aperture parameters and light sensitivity.
Step S4, described adjustment module 100 regulates described image capturing device 14 according to described acquisition parameters.
Step S6, described control module 102, in the time starting to input shadow character, for example starts described image capturing device 14, according to the shadow image of default shooting interval time (, 5 seconds) shooting light-emitting device.
Step S8, described processing module 104 is carried out mirror image processing to described shadow image.
Step S10, identifies the movement locus of shadow in the shadow image of described generation module 106 from mirror image processing.
Step S12, described generation module 106 is according to character corresponding to the captured shadow of this trace generator.
Step S14, described generation module 106 is shown in described character on the display screen 13 of described electronic installation 1, then, process ends.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to above preferred embodiments, those of ordinary skill in the art should be appreciated that and can modify or be equal to the spirit and scope that replacement should not depart from technical solution of the present invention technical scheme of the present invention.
Claims (10)
1. a shadow characters input method, applies in electronic installation, and described electronic installation comprises image capturing device, it is characterized in that, the method comprises the steps:
Preset described image capturing device in order to take the acquisition parameters of shadow character, and regulate described image capturing device according to described acquisition parameters;
In the time starting to input shadow character, start described image capturing device according to the shadow image of default shooting interval time shooting light-emitting device;
Described shadow image is carried out to mirror image processing;
In shadow image from mirror image processing, identify the movement locus of shadow; And
According to character corresponding to the captured shadow of this trace generator.
2. shadow characters input method as claimed in claim 1, is characterized in that, the method also comprises:
Described shadow image is carried out to image processing, comprising: heighten contrast, make background color blackening, remove noise.
3. shadow characters input method as claimed in claim 1, it is characterized in that, described acquisition parameters comprises shutter parameter, aperture parameters and light sensitivity, and described shutter setting parameter is slow shutter, described aperture parameters is set as the first referential data, and described light sensitivity is set as the second referential data.
4. shadow characters input method as claimed any one in claims 1 to 3, is characterized in that, the method also comprises:
In the time cannot generating correct character according to this movement locus, provide the character similar to the shape of this movement locus to select for user, or prompting user re-enter.
5. shadow characters input method as claimed in claim 4, is characterized in that, described light-emitting device is an infrared laser torch, and described character comprises word, letter, numeral and symbol.
6. a shadow character input system, applies in electronic installation, and described electronic installation comprises image capturing device, it is characterized in that, this system comprises:
Adjustment module, for presetting described image capturing device in order to take the acquisition parameters of shadow character, and regulates described image capturing device according to described acquisition parameters;
Control module, in the time starting to input shadow character, starts described image capturing device according to the shadow image of default shooting interval time shooting light-emitting device;
Processing module, for carrying out mirror image processing to described shadow image; And
Generation module, identifies the movement locus of shadow for the shadow image from mirror image processing, and according to character corresponding to the captured shadow of this trace generator.
7. shadow character input system as claimed in claim 6, is characterized in that, described processing module also, for described shadow image is carried out to image processing, comprising: heighten contrast, make background color blackening, remove noise.
8. shadow character input system as claimed in claim 6, it is characterized in that, described acquisition parameters comprises shutter parameter, aperture parameters and light sensitivity, described adjustment module is slow shutter by described shutter setting parameter, described aperture parameters is set as to the first referential data, and described light sensitivity is set as to the second referential data.
9. the shadow character input system as described in any one in claim 6 to 8, it is characterized in that, described generation module is also in the time cannot generating correct character according to this movement locus, provide the character similar to the shape of this movement locus to select for user, or prompting user re-enter.
10. shadow character input system as claimed in claim 9, is characterized in that, described light-emitting device is an infrared laser torch, and described character comprises word, letter, numeral and symbol.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547280.9A CN103869951A (en) | 2012-12-17 | 2012-12-17 | Shadow character input system and method |
| TW101149938A TW201428539A (en) | 2012-12-17 | 2012-12-25 | System and method for inputting light characters |
| US14/103,874 US20140168069A1 (en) | 2012-12-17 | 2013-12-12 | Electronic device and light painting method for character input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547280.9A CN103869951A (en) | 2012-12-17 | 2012-12-17 | Shadow character input system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103869951A true CN103869951A (en) | 2014-06-18 |
Family
ID=50908578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210547280.9A Pending CN103869951A (en) | 2012-12-17 | 2012-12-17 | Shadow character input system and method |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20140168069A1 (en) |
| CN (1) | CN103869951A (en) |
| TW (1) | TW201428539A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104156149A (en) * | 2014-07-18 | 2014-11-19 | 小米科技有限责任公司 | Method and device for adjusting photographing parameters |
| CN105892677A (en) * | 2016-04-26 | 2016-08-24 | 广东小天才科技有限公司 | Character input method and system of wearable device |
| CN107390880A (en) * | 2017-09-15 | 2017-11-24 | 西安建筑科技大学 | One kind is based on the contactless multi-angle input equipment of shadow and input method |
| CN112209191A (en) * | 2020-09-25 | 2021-01-12 | 海拓信息技术(佛山)有限公司 | Key triggering method and device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103973984B (en) * | 2014-05-29 | 2015-11-25 | 努比亚技术有限公司 | Image pickup method and device |
| WO2016018416A1 (en) * | 2014-07-31 | 2016-02-04 | Hewlett-Packard Development Company, L.P. | Determining the location of a user input device |
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| US5559897A (en) * | 1994-01-21 | 1996-09-24 | Lucent Technologies Inc. | Methods and systems for performing handwriting recognition from raw graphical image data |
| US20030210229A1 (en) * | 2002-05-08 | 2003-11-13 | Fuji Photo Optical Co., Ltd. | Presentation system, material presenting device, and photographing device for presentation |
| US20050114073A1 (en) * | 2001-12-05 | 2005-05-26 | William Gobush | Performance measurement system with quantum dots for object identification |
| CN1875337A (en) * | 2003-11-07 | 2006-12-06 | 三菱电机株式会社 | Method for determining location on display surface and interactive display system |
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| US7623115B2 (en) * | 2002-07-27 | 2009-11-24 | Sony Computer Entertainment Inc. | Method and apparatus for light input device |
-
2012
- 2012-12-17 CN CN201210547280.9A patent/CN103869951A/en active Pending
- 2012-12-25 TW TW101149938A patent/TW201428539A/en unknown
-
2013
- 2013-12-12 US US14/103,874 patent/US20140168069A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4825200A (en) * | 1987-06-25 | 1989-04-25 | Tandy Corporation | Reconfigurable remote control transmitter |
| US5559897A (en) * | 1994-01-21 | 1996-09-24 | Lucent Technologies Inc. | Methods and systems for performing handwriting recognition from raw graphical image data |
| US20050114073A1 (en) * | 2001-12-05 | 2005-05-26 | William Gobush | Performance measurement system with quantum dots for object identification |
| US20030210229A1 (en) * | 2002-05-08 | 2003-11-13 | Fuji Photo Optical Co., Ltd. | Presentation system, material presenting device, and photographing device for presentation |
| CN1875337A (en) * | 2003-11-07 | 2006-12-06 | 三菱电机株式会社 | Method for determining location on display surface and interactive display system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104156149A (en) * | 2014-07-18 | 2014-11-19 | 小米科技有限责任公司 | Method and device for adjusting photographing parameters |
| CN104156149B (en) * | 2014-07-18 | 2016-04-13 | 小米科技有限责任公司 | Acquisition parameters control method and device |
| US9819856B2 (en) | 2014-07-18 | 2017-11-14 | Xiaomi Inc. | Shooting parameter adjustment method and device |
| CN105892677A (en) * | 2016-04-26 | 2016-08-24 | 广东小天才科技有限公司 | Character input method and system of wearable device |
| CN105892677B (en) * | 2016-04-26 | 2019-03-22 | 广东小天才科技有限公司 | Character input method and system of wearable device |
| CN107390880A (en) * | 2017-09-15 | 2017-11-24 | 西安建筑科技大学 | One kind is based on the contactless multi-angle input equipment of shadow and input method |
| CN112209191A (en) * | 2020-09-25 | 2021-01-12 | 海拓信息技术(佛山)有限公司 | Key triggering method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201428539A (en) | 2014-07-16 |
| US20140168069A1 (en) | 2014-06-19 |
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Application publication date: 20140618 |